Water-soluble pentapolymer molecular brush dye capture and sedimentation agent and its preparation method and application

A polymer and sedimentation agent technology, applied in water pollutants, chemical instruments and methods, water/sewage treatment, etc., can solve complex heavy metal ions, single chemical structure of polyacrylamide, and poor capture ability of dye molecules and other problems, to achieve the effect of solving the problem of complexed heavy metal ions, efficient capture, and rapid sedimentation

Active Publication Date: 2020-09-01
合肥九州龙腾科技成果转化有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical structure of polyacrylamide is relatively simple, and there are problems such as poor ability to capture dye molecules, slow sedimentation speed, and inability to deal with complexed heavy metal ions.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] It is a water-soluble five-membered polymer molecular brush dye catching sedimentation agent, which is prepared by the following steps:

[0022] Step 1 Synthesis of PHEMAA polymer backbone

[0023] Take 1 part of azobisisobutyronitrile initiator, 100 parts of hydroxyethyl acrylamide (HEMAA) and 400 parts of methanol, carry out polymerization reaction at 80°C for 1 hour under nitrogen protection, and obtain a degree of polymerization (DP) of 30 Polyhydroxyethyl acrylamide (PHEMAA);

[0024] Step 2 Synthesis of cationic polymer side chain PDMC-COOH, anionic polymer side chain precursor polymer PtBMA-COOH and functional polymer side chain precursor polymer PNVF-COOH

[0025] Synthesis of cationic polymer side chain PDMC-COOH: take 1 part of azodicyanovaleric acid initiator, 100 parts of methacryloyloxyethyltrimethylammonium chloride (DMC) and 300 parts of water , carried out radical polymerization at 60 °C for 2 hours under nitrogen protection to obtain PDMC-COOH with a ...

Embodiment 2

[0035] It is a water-soluble five-membered polymer molecular brush dye catching sedimentation agent, which is prepared by the following steps:

[0036] Step 1 Synthesis of PHEMAA polymer backbone

[0037] Take 1 part of ethyl 2-bromoisobutyrate initiator, 1 part of CuBr, 1 part of 4,4-bipyridine (BPy), 100 parts of hydroxyethyl acrylamide (HEMAA), 100 parts of methanol, Under nitrogen protection, the polymerization was carried out at 60 °C for 5 hours to obtain polyhydroxyethyl acrylamide (PHEMAA) with a degree of polymerization (DP) of 200;

[0038] Step 2 Synthesis of cationic polymer side chain PDMC-COOH, anionic polymer side chain precursor polymer PtBMA-COOH and functional polymer side chain precursor polymer PNVF-COOH

[0039] Synthesis of cationic polymer side chain PDMC-COOH: take 1 part of azodicyanovaleric acid initiator, 200 parts of methacryloyloxyethyltrimethylammonium chloride (DMC) and 100 parts of water , carry out radical polymerization at 60 °C for 10 hours...

Embodiment 3

[0049] It is a water-soluble five-membered polymer molecular brush dye catching sedimentation agent, which is prepared by the following steps:

[0050] Step 1 Synthesis of PHEMAA polymer backbone

[0051] Take 1 part of ethyl 2-bromoisobutyrate initiator, 1 part of CuBr, 1 part of 4,4-bipyridine (BPy), 400 parts of hydroxyethyl acrylamide (HEMAA), 100 parts of methanol, Under nitrogen protection, the polymerization was carried out at 70°C for 10 hours to obtain polyhydroxyethyl acrylamide (PHEMAA) with a degree of polymerization (DP) of 300;

[0052] Step 2 Synthesis of cationic polymer side chain PDMC-COOH, anionic polymer side chain precursor polymer PtBMA-COOH and functional polymer side chain precursor polymer PNVF-COOH

[0053] Synthesis of cationic polymer side chain PDMC-COOH: take 1 part of azodicyanovaleric acid initiator, 300 parts of methacryloyloxyethyltrimethylammonium chloride (DMC) and 100 parts of water , carried out radical polymerization at 60 °C for 12 hou...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
degree of polymerizationaaaaaaaaaa
degree of graftingaaaaaaaaaa
Login to view more

Abstract

The invention relates to a c and a preparation method thereof and applications thereof. The water-soluble quaternary polymer molecular brush dye trapping sedimentation agent is characterized by beingprepared from poly hydroxyethyl acrylamide as a polymer main chain, poly methacrylatoethyl trimethyl ammonium chloride as a cationic polymer with a side chain terminal end containing a carboxyl group,poly(tert-butylmethacrylate) as a cationic polymer side chain precursor polymer with a terminal end containing a carboxyl group, poly N-vinylformamide as a functional polymer side chain precursor polymer with a terminal end containing a carboxyl group, a dimethylformamide (DMF) solvent, a catalyst, 1-ethyl 3-(3-dimethylaminopropyl)carbodiimide iodomethane salt, potassium hydroxide, 1,2-cyclohexanediamine tetraacetic dianhydride and carbon disulfide, and can be used to treat dye wastewater and art coating wastewater discharged by the process of dye synthesis or dyeing and finishing. The water-soluble quaternary polymer molecular brush dye trapping sedimentation agent has the advantages of simple operation, low processing cost, strong adaptability, good trapping ability, quick sedimentationspeed, capability to treat complexed heavy metal ions and capture cationic dyes, anionic dyes, and the complexed heavy metal ions in a few seconds.

Description

technical field [0001] The invention belongs to the field of water treatment technology and polymer functional materials, and in particular relates to a pentapolymer molecular brush dye capture and sedimentation agent, a preparation method and application thereof. It is mainly used in dye wastewater and art paint wastewater discharged during dye synthesis or dyeing and finishing, and can simultaneously remove cationic dyes, anionic dyes and complexed heavy metal ions in dye wastewater. Background technique [0002] In recent years, my country's annual sewage discharge has reached more than 39 billion tons, of which industrial sewage accounts for 51%, while dye wastewater accounts for 35% of the total industrial wastewater discharge, and it is increasing at a rate of 1% year by year. Dye wastewater mainly comes from dye synthesis and dye use enterprises, and is composed of dyes and auxiliaries discharged during the synthesis or dyeing and finishing process. With the rapid de...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/66C08G81/02C02F101/20C02F101/30
CPCC02F1/5236C02F1/56C02F1/66C02F2101/20C02F2101/308C08G81/021
Inventor 霍应鹏刘锋陈燕舞洪丹张浥琨郭志杰刘祥军唐秋实彭琦
Owner 合肥九州龙腾科技成果转化有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap